After having a stroke resulting from a blockage of blood to the medial temporal lobe, Gerald could not remember new information, such as the books he had just read, new songs he had just heard, or the faces of new people he had just met. Gerald was experiencing A. dissociative fugue
B. dissociative amnesia
C. retrograde amnesia
D. anterograde amnesia
E. conversion disorder

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?